He was consecrated on 17 January 2010, by Mar Dinkha IV, Patriarch of the Assyrian Church of the East.
[1] Mar Yohannan Yoseph was born Joju Anto at East Fort in Trichur on 14 November 1966.
He stayed at St. Ephrem Ecumenical Research Institute, Kottayam (1998-2000), and earned a Master of Arts (M.A.)
He received his Doctorate (Phd Studies) in Syriac Language and Literature from Mahatma Gandhi University, Kottayam Kerala in 2017.
On 17 January 2010 he was consecrated as Episcopa of the Holy Catholic Assyrian Church of the East for the Archdiocese of India by Mar Dinkha IV.